First search for K+→π+νν¯ using the decay-in-flight technique

The NA62 Collaboration

doi:10.1016/j.physletb.2019.01.067

First search for K⁺→π⁺νν¯ using the decay-in-flight technique

The NA62 Collaboration

University of Louvain
Brookhaven National Laboratory
TRIUMF
Sofia University St. Kliment Ohridski
LNF-INFN
University of British Columbia
University of California, Los Angeles
Charles University
University of Valencia
Johannes Gutenberg University
University of Würzburg
Universität Hamburg
European Organization for Nuclear Research
Sezione INFN di Ferrara
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Modena and Reggio Emilia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Dipartimento di Fisica
INFN Sezione di Napoli
University of Liverpool
INFN Sezione di Perugia
University of Birmingham
University of Rome
Sezione di Roma
University of Rome “Tor Vergata”
INFN Sezione di Torino
Laboratory of Molecular Pathology
Universidad Autónoma de San Luis Potosi
Universidad de Guanajuato
Horia Hulubei National Institute of Physics and Nuclear Engineering
Joint Institute for Nuclear Research, Dubna
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
Institute for Nuclear Research of the Russian Academy of Sciences
National Research Nuclear University MEPhI
Moscow Institute of Physics and Technology
Kurchatov Institute
Comenius University
c/o DESY
Imperial College London
Aix Marseille Université
Università di Roma La Sapienza
University of Bristol
University of Glasgow
Lancaster University
George Mason University
Stanford Linear Accelerator Center

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The NA62 experiment at the CERN SPS reports the first search for K⁺→π⁺νν¯ using the decay-in-flight technique, based on a sample of 1.21×10¹¹ K⁺ decays collected in 2016. The single event sensitivity is 3.15×10⁻¹⁰, corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10⁻¹⁰ on the K⁺→π⁺νν¯ branching ratio at 95% CL.

langue originale	Anglais
Pages (de - à)	156-166
Nombre de pages	11
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	791
Les DOIs	https://doi.org/10.1016/j.physletb.2019.01.067
état	Publié - 10 avr. 2019

Accès au document

10.1016/j.physletb.2019.01.067

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Contient cette citation

@article{96a7bf38c1f44d10b9cb3dbf63137e8b,

title = "First search for K+→π+νν¯ using the decay-in-flight technique",

abstract = "The NA62 experiment at the CERN SPS reports the first search for K+→π+νν¯ using the decay-in-flight technique, based on a sample of 1.21×1011 K+ decays collected in 2016. The single event sensitivity is 3.15×10−10, corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10−10 on the K+→π+νν¯ branching ratio at 95\% CL.",

author = "\{The NA62 Collaboration\} and \{Cortina Gil\}, E. and E. Minucci and S. Padolski and P. Petrov and B. Velghe and G. Georgiev and V. Kozhuharov and L. Litov and T. Numao and D. Bryman and J. Fu and T. Husek and K. Kampf and M. Zamkovsky and R. Aliberti and G. Khoriauli and J. Kunze and D. Lomidze and R. Marchevski and L. Peruzzo and M. Vormstein and R. Wanke and P. Dalpiaz and M. Fiorini and E. Gamberini and I. Neri and A. Norton and F. Petrucci and H. Wahl and \{Cotta Ramusino\}, A. and A. Gianoli and E. Iacopini and G. Latino and M. Lenti and A. Bizzeti and F. Bucci and R. Volpe and A. Antonelli and G. Lamanna and G. Lanfranchi and G. Mannocchi and S. Martellotti and M. Moulson and M. Raggi and T. Spadaro and F. Ambrosino and T. Capussela and M. Corvino and \{Di Filippo\}, D. and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2019 The Author",

year = "2019",

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doi = "10.1016/j.physletb.2019.01.067",

language = "English",

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TY - JOUR

T1 - First search for K+→π+νν¯ using the decay-in-flight technique

AU - The NA62 Collaboration

AU - Cortina Gil, E.

AU - Minucci, E.

AU - Padolski, S.

AU - Petrov, P.

AU - Velghe, B.

AU - Georgiev, G.

AU - Kozhuharov, V.

AU - Litov, L.

AU - Numao, T.

AU - Bryman, D.

AU - Fu, J.

AU - Husek, T.

AU - Kampf, K.

AU - Zamkovsky, M.

AU - Aliberti, R.

AU - Khoriauli, G.

AU - Kunze, J.

AU - Lomidze, D.

AU - Marchevski, R.

AU - Peruzzo, L.

AU - Vormstein, M.

AU - Wanke, R.

AU - Dalpiaz, P.

AU - Fiorini, M.

AU - Gamberini, E.

AU - Neri, I.

AU - Norton, A.

AU - Petrucci, F.

AU - Wahl, H.

AU - Cotta Ramusino, A.

AU - Gianoli, A.

AU - Iacopini, E.

AU - Latino, G.

AU - Lenti, M.

AU - Bizzeti, A.

AU - Bucci, F.

AU - Volpe, R.

AU - Antonelli, A.

AU - Lamanna, G.

AU - Lanfranchi, G.

AU - Mannocchi, G.

AU - Martellotti, S.

AU - Moulson, M.

AU - Raggi, M.

AU - Spadaro, T.

AU - Ambrosino, F.

AU - Capussela, T.

AU - Corvino, M.

AU - Di Filippo, D.

AU - Maurice, E.

PY - 2019/4/10

Y1 - 2019/4/10

N2 - The NA62 experiment at the CERN SPS reports the first search for K+→π+νν¯ using the decay-in-flight technique, based on a sample of 1.21×1011 K+ decays collected in 2016. The single event sensitivity is 3.15×10−10, corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10−10 on the K+→π+νν¯ branching ratio at 95% CL.

AB - The NA62 experiment at the CERN SPS reports the first search for K+→π+νν¯ using the decay-in-flight technique, based on a sample of 1.21×1011 K+ decays collected in 2016. The single event sensitivity is 3.15×10−10, corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10−10 on the K+→π+νν¯ branching ratio at 95% CL.

UR - https://www.scopus.com/pages/publications/85062332112

U2 - 10.1016/j.physletb.2019.01.067

DO - 10.1016/j.physletb.2019.01.067

M3 - Article

AN - SCOPUS:85062332112

SN - 0370-2693

VL - 791

SP - 156

EP - 166

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics